在移动设备上禁用自动播放

Question

我想禁用我网站上音频流的自动播放，问题是移动设备无法自动播放，激活事件的按钮已暂停（就像您正在播放音频一样）。我希望出现播放按钮而不是暂停按钮，我认为最好在移动设备上禁用自动播放。

<script type="text/javascript">
   var audio, playbtn, mutebtn, seek_bar;
function initAudioPlayer(){
    audio = new Audio();
    audio.src = "http://listen.streaming";
    audio.loop = true;
    audio.play();
    // Set object references
    playbtn = document.getElementById("playpausebtn");
    // Add Event Handling
    playbtn.addEventListener("click",playPause);
    // Functions
    function playPause(){
        if(audio.paused){
            audio.play();
            playbtn.style.background = "url(pausa-sobre.png) no-repeat";
        } else {
            audio.pause();
            playbtn.style.background = "url(play-sobre.png) no-repeat";
        }
    }

}
window.addEventListener("load", initAudioPlayer);


    </script>

html

<button id="playpausebtn"></button>

CSS

    button{ border:none; cursor:pointer; outline:none; }
button#playpausebtn{
    background:url(pausa-sobre.png) no-repeat;
    width:68px;
    height:68px;
}

Answer 1

您可以使用 http://detectmobilebrowsers.com/ 提供的正则表达式并将 window.addEventListener("load", initAudioPlayer); 包装成：

var userAgent = navigator.userAgent || navigator.vendor || window.opera;
if (!(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(userAgent) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(userAgent.substr(0, 4)))) {
    window.addEventListener("load", initAudioPlayer);
}

或者您可以简单地使用提供不仅仅是检查的库，例如 Mobile Detect https://github.com/hgoebl/mobile-detect.js

Answer 2

一个可能的解决方案是在运行 play() 方法之后检查音频的 paused 状态：

如果是false：表示音频开始了
如果是true：表示音频没有开始播放（你必须显示播放按钮而不是暂停按钮）

这就是代码（替换正确的图片）：

var audio, playbtn, mutebtn, seek_bar;
function initAudioPlayer(){
    audio = new Audio();
    audio.src = "http://www.w3schools.com/html/horse.mp3";
    audio.loop = true;
    audio.play();

    // Set object references
    playbtn = document.getElementById("playpausebtn");

    // if it's not playing after calling play(), show the other icon
    if(audio.paused) {
        playbtn.style.background = "url(http://www.clker.com/cliparts/e/5/a/2/1206570547560908424akiross_Audio_Button_Set_4.svg.thumb.png) no-repeat";        
    }

    // Add Event Handling
    playbtn.addEventListener("click",playPause);
    // Functions
    function playPause(){
        if(audio.paused){
            audio.play();
            playbtn.style.background = "url(http://www.clker.com/cliparts/c/e/f/2/1206570536270669982akiross_Audio_Button_Set_1.svg.thumb.png) no-repeat";
        } else {
            audio.pause();
            playbtn.style.background = "url(http://www.clker.com/cliparts/e/5/a/2/1206570547560908424akiross_Audio_Button_Set_4.svg.thumb.png) no-repeat";
        }
    }

}
window.addEventListener("load", initAudioPlayer);

你可以看到它在这个 JSFiddle 上工作：http://jsfiddle.net/LbnLu89d/3/

在移动设备上禁用自动播放

disable autoplay on mobile devices

javascript

android

autoplay